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uselect.h

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+/******************************************************************************
+*
+*  This program is free software; you can redistribute it and/or modify it
+*  under the terms of the GNU General Public License as published by
+*  the Free Software Foundation; either version 1, or (at your option)
+*  any later version.
+*
+*  This program is distributed in the hope that it will be useful,
+*  but WITHOUT ANY WARRANTY; without even the implied warranty of
+*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+*  GNU General Public License for more details.
+*
+*  You should have received a copy of the GNU General Public License
+*  along with this program; if not, write to the Free Software
+*  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*
+*  Please report any bugs you find in this code or any improvements to:
+*
+*  Hans Hedbom, Dept. of Computer Science,
+*  University of Karlstad, Sweden.
+*
+*  Phone: +46 54 838157
+*  E-mail: Hans.Hedbom@hks.se
+* 
+*  ============================================================================
+*
+*  FILE:
+*
+*  uselect.h [ the Data Communication I course programming project ]
+*
+*  AUTHORS:
+*
+*  Jonny Wiederholm
+*  E-mail: fr7wied@cse.hks.se or
+*          jonnwied@hks.se
+*
+*  Per-Ola Gustafsson
+*  E-mail: fr7gust@cse.hks.se
+*
+*  CREATION DATE: 
+*
+*  Jan, 06, 1998
+*
+*  DESCRIPTION:
+*
+*  Includes types and declarations of functions needed to poll sockets in the
+*  example implementation of the Data Communication I course programming
+*  project.
+*
+*  MODIFICATIONS:   Date    Changes
+*  ----------------------------------------------------------------------------
+*
+*/
+
+#ifndef _USELECT_H    /* Avoid multiple copies of this file. */
+#define _USELECT_H
+
+#ifdef __cplusplus    /* Make this file possible to use in C++ code. */
+extern "C" {
+#endif
+
+/******************************************************************************
+*  INCLUDE FILES
+*/
+
+#include "systems.h"
+
+/******************************************************************************
+*  DEFINE TYPES
+*/
+
+/* Type representing part of a time peroid. */
+#if defined (__linux__) || defined (_AIX)
+typedef int   time_p_;
+#elif defined(sun)
+typedef long  time_p_;
+#endif                  /* defined (__linux__) || defined (_AIX) */
+
+/* Structure representing a timeout time period. */
+struct timeout {
+  time_p_  tv_sec;   /* Seconds. */
+  time_p_  tv_usec;  /* Microseconds. */
+};
+
+/******************************************************************************
+*  DECLARE FUNCTIONS
+*/
+
+/* See function definitions for documentation. */
+
+extern struct timeout *SetPollTimeout __P((time_p_ seconds, time_p_ \
+					   microseconds));
+extern int PollSocket __P((int sockfd1, int sockfd2, struct timeout *to));
+
+/******************************************************************************
+*  END
+*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif                  /* _USELECT_H */